Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebaa8c79732086ab…

MALICIOUS

PDF

78.7 KB Created: 2021-04-06 05:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b702d6950da78a38b9d012fe21c690f SHA-1: 6c108df4f84e30aa50c2833efc12e2f19d62c909 SHA-256: ebaa8c79732086ab352e7dc3630cca98e29fd7f34d38bc651ac1085f0e86093a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. No scripts were extracted, but the presence of an external URI and the ML/ClamAV detections strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://dugedepap.ru/wix?keyword=lbj+elementary+school+jackson+ky
    • https://cdn.sqhk.co/bitubebo/hihehgI/srs_for_hotel_management_system.pdf
    • https://cdn.sqhk.co/wafavalufa/ibwdjgh/rewavedekemetolex.pdf
    • http://potuduwatolebu.mywebcommunity.org/nolaragilezeroraxa.pdf
    • http://kavoxujeledi.iblogger.org/rotisunemawal.pdf
    • https://cdn-cms.f-static.net/uploads/4425929/normal_6022da4cec2e5.pdf
    • https://cdn.sqhk.co/wuzirixowev/ieF4gim/game_voice_chat_app_free.pdf
    • https://cdn.sqhk.co/gixezovof/xhjhiiu/93974354286.pdf
    • https://cdn-cms.f-static.net/uploads/4407986/normal_60438b004cb2e.pdf
    • http://bewewafip.scienceontheweb.net/salary_in_aircraft_maintenance_engineering.pdf
    • https://cdn-cms.f-static.net/uploads/4470535/normal_600f15a108578.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tazipebikitunir.rf.gd/used_ford_escape_hybrid_for_sale_by_owner.pdf
    • https://uploads.strikinglycdn.com/files/0ec3cd55-a3f6-4ded-a506-987bbc6b87aa/how_to_modify_voice_in_audacity.pdf
    • http://dufojamimusim.atwebpages.com/34224130363.pdf
    • http://raburuterurova.rf.gd/thermador_steam_oven_user_manual.pdf
    • http://tebafifara.rf.gd/viral_pathogenesis.pdf
    • http://pisatetakedabak.epizy.com/89996165368.pdf
    • https://uploads.strikinglycdn.com/files/821d5e75-82f4-49ea-8c12-cbe454bb9aef/powerstation_psx-3_18ah_jumpstarter_with_air_compressor.pdf
    • https://uploads.strikinglycdn.com/files/101b4811-ef79-4162-a13e-c439a21e3952/suzajifejupuxanenaronobup.pdf
    • http://jezawirigi.epizy.com/always_remember_us_this_way_piano_chords.pdf
    • https://uploads.strikinglycdn.com/files/83c6b340-8f41-4ed1-b640-75bf45c0a682/fundamentals_of_physics_extended_11th_edition.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e79a.bin
8babe988b9217907be7d47b7f71d3b4f2dea73e38acbb573e87b3e8ad6e003af		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE79A 5104 bytes
font_01_sfnt_off0000f8c7.bin
3b536acd291ca8a60cf4eccac2351edaaccff52c88eb46371cf2b082f450e93f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C7 11328 bytes
font_02_sfnt_off00011f66.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F66 4324 bytes

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